Updated: Monday, 14 May 2012 19:14 Frankel and Excelebration cross swords for a fourth time in the Lockinge Stakes

Frankel is the star name among nine confirmations for the JLT Lockinge Stakes at Newbury on Saturday.

Unbeaten in nine starts to date, Henry Cecil's colt is the world's highest rated racehorse and while he suffered an injury scare early last month, he is all set to make his eagerly anticipated four-year-old debut this weekend.

He is set to be joined by his stablemate, regular work companion and half-brother Bullet Train.

Frankel's biggest danger appears to hail from Aidan O'Brien's Ballydoyle yard.

Excelebration chased home Frankel three times when trained by Marco Botti last year, winning his other three starts.

He made a fine start for his new trainer when winning last month's Gladness Stakes at the Curragh.

O'Brien said: "He's fine. He's a very relaxed horse and good enough to compete.

"Marco Botti did a great job with him, but he's a year older and has strengthened up.

"It will be interesting taking on Frankel and if you know his achilles heel, I wish you'd let me know!"

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Frankel heads Lockinge confirmations